Robert Arthur Books
The Mystery of the Silver Spider
Three young detectives travel abroad to solve a mystery involving a silver spider and a political plot that endangers the life of a young prince.
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The three investigators in The secret of the crooked cat
By Robert Arthur, William Arden
Using a clue provided by an unusual stuffed cat, three young detectives investigate the mysterious troubles of an accident-prone carnival.
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The Mystery of the Singing Serpent
The three investigators become involved in witchcraft when they try to rescue a woman from the influence of snake worshippers.
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The three investigators in The mystery of the shrinking house
By Robert Arthur, William Arden
The Three Investigators solve a case involving an international gang of art forgers.
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The three investigators in The mystery of Monster Mountain
By M. V. Carey
The three young sleuths solve a case of double identity while investigating the legend of Monster Mountain.
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MYSTERY OF THE DEAD MAN'S RIDD
By Robert Arthur, William Arden
Three young detectives go on a high-stakes treasure hunt in order to restore a fortune to the rightful heirs.
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The three investigators in The mystery of the invisible dog
The three investigators are hounded by supernatural forces as they attempt to recover a stolen sculpture of a legendary wolf-dog.
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The three investigators in The mystery of the dancing devil
By Robert Arthur, William Arden
Three young detectives search for a stolen statue only to find that it has mysteriously come to life.
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